Optically Controlled Liquid Crystal Digital Alarm Clock
This device is a battery-operated (4.5V) digital alarm clock with a 12/24-hour time display, showing day, month, and year. It also features an indoor temperature display with a detection range of 10°C to 50°C, updating every 20 seconds. The clock includes time, temperature, and alarm functions, with a built-in light sensor for optical control. It's available in three colors: Black, White, and Pink.